greatest treasure; most valuable asset; pride
Refers to something considered the most precious possession, often used in formal or literary contexts to describe a person, object, or quality that is highly cherished.
This painting is our nation's greatest treasure.
彼女はチームにとって至宝だ。
She is the team's most valuable asset.
Compound of 至 (ultimate, most) and 宝 (treasure). The exact historical derivation is uncertain, but the kanji combination directly conveys the meaning of 'supreme treasure'.